气候变化领域集成服务门户(CCPortal): Long-term (1925–2015) forest structure reorganization in an actively managed temperate-boreal forest region of eastern North America

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DOI	10.1016/j.foreco.2020.118744
	Long-term (1925–2015) forest structure reorganization in an actively managed temperate-boreal forest region of eastern North America
	Boucher Y.; Auger I.; Arseneault D.; Elzein T.; Sirois L.
发表日期	2020
ISSN	0378-1127
英文摘要	Over the last century, forest management has modified the natural disturbance regime of temperate and boreal forest regions. Consequently, this new disturbance regime may have profoundly affected the structure, composition and associated carbon stocks of forest ecosystems. The aim of this study is to document structural and compositional changes (1925–2015) in an actively managed forest region of eastern North America and their effects on above-ground biomass (AGB). We reconstructed stand structure, species composition and AGB of the preindustrial forest using 54,343 plots sampled by the Price Brothers & Company from 1924 to 1930. The present-day forest was described using 9561 plots surveyed during the most recent decadal forest inventories (1980s, 1990s, 2000s, 2010s) conducted by the Government of Quebec, eastern Canada. Between 1925 and 2015, the age structure shifted from a dominance of old-growth and mature stands (>80 years) to one of immature stands (<40 years) where early successional deciduous species increased in importance. The most striking difference was the sharp increase in stand density (>72%). Accordingly, tree diameter distribution changed markedly as a result of a strong increase of the smallest tree class to the expense of larger tree classes. Despite this structural reorganization, AGB has remained stable. Forest management history has induced a major forest structure reorganization. Aerial carbon stocks remain stable and resilient despite the strong density increase of small trees. The sharp increase in stand density could have significant impacts on biodiversity and resilience. In accordance with ecological forestry principles, the restoration of more natural forest conditions is expected to reduce the possible detrimental effects of forest management. © 2020 Elsevier B.V.
英文关键词	Carbon; Clearcutting; Disturbances; Historical ecology; Land use change; Stand density
语种	英语
scopus关键词	Antennas; Biodiversity; Carbon; Conservation; Ecosystems; Above ground biomass; Compositional changes; Disturbance regime; Eastern north america; Management history; Natural disturbance regime; Species composition; Structural reorganization; Forestry
来源期刊	Forest Ecology and Management
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/155659
作者单位	Direction de la recherche forestière, Ministère des Forêts, de la Faune et des Parcs du Québec, 2700, rue Einstein, Québec, (QC) G1P 3W8, Canada; Université du Québec à Montréal, Département des sciences biologiques, P.O. Box 8888, Centre-Ville Station, Montréal, (QC) H3C 3P8, Canada; Centre d’étude de la forêt, Université du Québec à Montréal, P.O. Box 8888, Centre-ville Station, Montréal, (QC) H3C 3P8, Canada; Département de biologie, chimie et géographie, Université du Québec à Rimouski, 300, Allée des Ursulines, Rimouski, (QC) G5L 3A1, Canada
推荐引用方式 GB/T 7714	Boucher Y.,Auger I.,Arseneault D.,等. Long-term (1925–2015) forest structure reorganization in an actively managed temperate-boreal forest region of eastern North America[J],2020.
APA	Boucher Y.,Auger I.,Arseneault D.,Elzein T.,&Sirois L..(2020).Long-term (1925–2015) forest structure reorganization in an actively managed temperate-boreal forest region of eastern North America.Forest Ecology and Management.
MLA	Boucher Y.,et al."Long-term (1925–2015) forest structure reorganization in an actively managed temperate-boreal forest region of eastern North America".Forest Ecology and Management (2020).